What do you think happens when you step on the gas pedal? Do you think it's still physically pulling some cable that opens flapper valves, allowing more fuel to flow into a carburetor?
I haven't worked on anything newer than about 10 years old but every fuel-injected petrol engine I've played with has had a mechanical butterfly valve operated by the pedal. The fancy electronics then measures mass flow rate (which is a function of throttle plate position, air temperature, air filter condition, engine rpm, etc) and injects the right amount of fuel. It's not *that* different from a mechanical carburettor except that carburettors measure volumetric flow and have to be tweaked for summer/winter to account for the different air inlet temperature
What about that transmission? Unless you drive manual, you're not actually moving gears around with that lever. You're sending a signal to a computer "Put it in drive" which was also designed by a programmer.
Where I'm from (UK) nearly everyone has a manual transmission